Collapsible spool



Patented July l?, i923.

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Application yfiled December 4, 1922. Serial No. 6045871.'`

To all i12/tom t may concern.'

Be it known that I, WILLIAM A. PnnN'rrss, a citizen of the United Statesof America, residing at Holyoke7 county of Hampden, State ofMassachusetts, have" invented cer-` tain new and useful improvements inCollapsible Spools, of which the following is a specification.

This invention relates to improvements in collapsible spoolsparticularly for use in winding wire or other material thereon so thatwhen the coil 0f wire is completed it may be readily ren'ioved from thebarrel or hub part of the spool. l y

Broadly considered it comprises a spool having the usual head or endmembers and a` plurality of movable arc-shaped sections which composethe barrel or hub part of the spool on which the wire is woundysaidsections being so constructed and arranged with relation to the headmembers that when one of the head members of the spool is removed thebarrel sections will automatically collapse or assume a position thediameter of which is less than when the coil of wire is being wound, oneof the head members serving t0 automatically move the arc-shapedsections composing the lbarrel outwardly when the two members areconnected or clamped rigidly together for winding the wire. l

It is a. well known fact that unless some means is provided for causingthe sections of the barrel or hub part to collapse after the coil iswoundit cannot be readily removed.

As a. modification my improvement embodies a collapsible barrel or hubin which the sections thereof are composed of arcshaped members withtheir opposite ends formed with inclined surfaces to engage inclinedsurfaceson the two head members, whereby when the head members are drawntoward each otherand clamped, the barrel elements are forced radiallyoutwardly and will automatically collapse, or move radially inwardlytoward the axis ofthe spool when the securing means is removed. In

this class of invention it is very necessary that the entire length ofthe barrel or hub elements will move inwardand parallel to the axis inorder that the wire which engages the sections of the barrel is properlyreleased the entire length of the same so that the finished coil may beremoved.

Referring to the drawings:

Fig.` l isa sectional View ona planerepresented by the line l-l of Fig.2 showing the pivotal connection of one of the arcshaped barrelsectionsy which composes the completed barrel or hub attached f to oneof the head members,` also the removable head memberwhichengages thebarrel sections and thelsecuring bolt. v

Fig. 2 isa view looking from theright of Fig. l with. the removable headmember withdrawn from the securing holt. "F ig. 3 is a detail view ofone of the barrel sections. f

llig. 4iis aI view showing the inner surface of the removable headmember and illustrating the pin which engages a recess in one 0f thearc-shaped barrel sections.

F ig. 5 is a detail view looking towards ythe inside of one of thearc-shaped: barrel sections.

Fig. 6 is asectional view 'on aplane indicated by the line 6 6 of Figa?showing a modification ofthe arc-shapedbarrel section and the two headmembers, and the sections located on the fixed shaft orcore of thespool.

Fig. 7 is a view showing the inner surface i of the removable head ofFig. 6 and illustrating the rectangular shaped shaft orcore withtheUarc-shapedsections thereon and the circular opening through whichthe securingbolt passes. y f

Fig. 8 is a detail view 0f two'of the arcshaped'sections located onthenrectangular Shaped shaft'. i y

Fig. 9 is a detail view of one ofthe` in-` termediate arc-shaped barrelsections which tio are located on the rectangularshaped core. J

Fig. l0 is a perspective view of one of the sections shownyin Fig.` 9and illustrating the 'rectangular shaped fopeningtherethrough `whichreceives the shaft, and,

Fig. l1 `is .an `assembled view before the (removable head pieceisplacedon thecore.

`Referring to the drawings in detailfl` l 'designates which may betermed fthe fixedheador memberof the spool and Q the 4removable head.The `head lfis formed-with L a depression or annular recessed portion 3105 in the inner face thereof anda hub portion 4. Pivotally connectedtothe member l are four V arc-shaped barrel sections indicated .in iFig. 2 by thielnumerals 5,` 6, 7 and Sand inA the detail view in Fig@v3.

ino

larc-shapedssections which go to make up the barrel part of the spool,as the number four shown is merely illustrative. Each of these .sectionsis pivotaflly --attached ltotliehead I1 by means of the posts or studs 9permitting them to swing about this pivotal connection as indicated bythe dot-tedline 10 in Figiand engage the edge of the recess 3 of thehead 1. It will. bei observed thatthesesections move panallelltotheaxisof the spool. The .outer orlright hand ends of eachof thesectionsL5,l6,7,-fand 8 are formed with an inclinedisurface 11 on theinner surfaces i there-` ofand engaging eacholf/these,.inclined'surfacesis an inclined surface 12 onthe integralflange 13fof theyremovable lheadimember 2, whereby when the rnut21ionthe bolt 14 is tightened theihead member Q is-.drawnftoard-theleftfroin.the dottedline position 2 to theffull Aline. I ,This willcauseea-chef the arefshaped sections 5f,.6, 7. and 8 l1to turn on theirpivots and be forced outwardly onfradially fnomthe'axis and rigidlyclamped @this position. The head vmemberv 2 is formed. with a 4stud 1,15,which engages one of the recesses '16 in one of,thearc-shapedbarrelseetions. i rlhis is ,forthe Apurpose of causingthe head 2terevolve with `the head 1 which is provided with a recess 17 `toreceivefawpin on the Vdriving-Lelement of the vmachine whenfthe .spoolas. a whole. is rotated,

ltol-.wi d..the wire ,indicated .at18 on the barrel,v section. It willbeseenfrom Fig. 2 `that wheinthe yarc-,shaped,barrel sections are in theirnormal or operative position, or in `other l twords, when` they f are.forced outward the wire Aindicated at .18 yis ,therefore wound aroundthe outer I arc-.shaped .surface 2O of reach l,of thesesections andacross the openings 1 `llVhen ,theremovable head .is withdrawn byremoving the nut2m1the pressure of .the inner turns `ofthe wire coil. onthe arcshaned. barrel i sections will automatically cause all of thesesections to swing inward vabout their ,pivots ,toward the axis,..thus

felgninsh'effeeba .Collapsible barrel or huh. theouter. arc-:shapedIsurfaces 2O ofwhich r'gniove,inward .-paralgleltothe axis so that theGQil .,ofr.wirewhich has beenwoiind `on the y surfaces20is free Vto bewithdrawn from the barrel." This is Aan Vinaportant .feature as it..automatieally permitsthe barrel elements to releasethe coil lof .wirethroughout its entire vlength orfwhole inner surface `of the coil. Thevinclirled surfaces, 131 and A12 between ithese; sections ,and ,theremovable head 2 Iigidlyviretains thefarshaped sections in friese .innersurface en ofthe. serias 6.. .7..- and f3 .is formedjwith ,a Harige or,rim.21 'which .egssesfth'e annular orrec'e'ssed portion 3 of `Whilethewire being wound. The

tlhehnb 51. Therefore vthe v'opposite endsfof the arc-shaped sectionsare firmly retained in place; one by the head 2 and the other by thevrecess 3 tand studs 9.

Referring to the modication shown vin Figs. 6 tof 11 inclusive, 22 and23 designate the fixed and removable head members of the spool, the-member22' is provided with an jintegralshaft or hub 24. This hub asshown in Figs. 7 and 8 is rectangular and has a circular opening 2,4. toreceive a clamping bolt. The vertical distance, indicated by the`numeral 25 is more than the transverse distance indicated-by thenumeral :26. This is forthe-purpose of permitting. the arc-shapedsections which composethe barrel to.move radially inward toward'gtheaxis when `the head member 23 is removed. Each one of thesesections y.isformed ywith inclined end surfaces 27 and 28 which engageand contactwith correspondingly shaped inclined surfaces l,29 and 30 on thetwo headmembers 2 2 and 23 -as shown. The. effectief this construction is thatwhenthe head member 23 is tightened the nut 21 the inclined surfaceswill force the four larc-shaped sector sections 31, 32, 33, and34outwardand at thesametime always maintain a parallel .position with ytheaxis. The dottedline 35indicates their position fbeforebeing `radiallyforced outward ,as shownin Fig.. .6. The end sectors31 and y33am formedwith inwardly vextendi'ng.integral portions 36 and 37 having rectangularshaped openingszto receive .thc rectangular shaped shaft or hubi24, butthe dimensions vof the openings in ,these parts 36 and 37 isv suchthattheyniay Lmove radi allyofitheaxis. `The spaces-38 and 39 per-- mit thisradial movement. rIhe extent of radial movement is indicated in Fig. 7at 38. Located intermediate oflthese members -,31,an-d 33 are ,the twoarc-shaped sections 32 and 34, see Fig. 11.

, It will be` seen that the .arc-shaped sections 31, 32, 33, land 3 4may ,move radially of the airis when the head 23 is vbolted or clampedand `will automatically assume' the dotted line position, indicated at35, ,when the head 23 is removed. Fig. 10 .is a detail view. Vof one 4ofthe arc-shaped elements showing the rectangular shaped opening 40 which.extends .through the part 36. which engages ,the rectangular shaped,shaft or hubv24 of the spool. The vertical distance 40 of 4thisoieninff is. as stated. 4.reater h? f n than the vertical distance ofthe shaft 424 that lin .both ,of ythe nected tothe fixed head l andinthe forms shown in Figs. 6 to ll the' arc-shaped sections are slidableradially of the shaft or hub of the fixed head 22 but move outwardly'andinwardly when they arc clamped or released. In Fig: 6 are shown stoppins 4l Vfor retaining` the, arc-shaped members 3l. toj 34 in place onthemhub.

It will be observed thatthe oppositely located sections 3l and 35i willmove toward and away from each other, and the oppositely locatedsections 32 and 34 will also move toward and away from each' other it inplace while being wound and for band-l ing1 the coil before removal.

When the arc-shaped sections 3l. 32, 33, and 34 collapse or move towardsthe axis the openings 45, 46, 47, and 48 will be more or less closed asshown by the dotted lines in Fig. 1l. The full lines represent the openpositions or windingJ positions.

-What I claim is: y

l. A spool for the purpose described, comprising a fixed and a removablehead, the fixed head having` a plurality of arcshaped members movablyengaging the same and movable relative thereto, one of the ends of thesemembers having inclined surfaces, the removable head having a c0-operating inclined surface to force or move the arc-shaped membersoutward on the fixed head when the removable head is clamped thereto.

2. In a spool, the combination. of a fixed and a removable head, thefixed head havingr a recess formed on its inner face, a plurality ofarc-shaped barrel sections engaging' the rec-ess of the fixed head andmovable relative thereto in the recess, the removable head having aninclined part engaging the arc-shaped barrel forming` sections formoving t-he same radially outward when the head is secured to the fixedhead of the spool.

3. In a spool, the combination, of a fixed and a removable head, thefixed head havinfr a hub, a bolt passing through the hub for clampingthe removable head in place, a plurality of barrel sections interposedbetween the two heads, one of the heads having an inclined surfacecooperatingT with correspondingly shaped inclined surfaces on the barrelsections for moving these sections radially outwardand simultaneouslymaintaining the sections in parallel relation to the axiswhen theremovable head is clamped in place or removed. i

4. In a spool forthe purpose' described, the combination. of a fixedandremovable head, a plurality of movable sector elements interposedbetween the heads `for receiving the wire which is wound onltheir outersurfaces, .said elements being spaced from each other when clamped inposition, means lincluding inclined cooperating! surfaces on one of theheads and the sector elements for permittingr theelements to move inwardand in parallel relation to the axis when the clamping means is removed,whereby the coil of wire which has been wound on these elements may bereadily removed from the collapsed sector elements.

5. In a spool, a fixed and a removable head, the fixed head having aplurality of' sectors engaging' the same and movable relative to thehead, the outer ends of the sectors having inclined surfaces, theremovable head having a fiange formed with an inclined surface forengaging the inclined surfaces of the sectors for moving them outwardand on the fixed head, means for securing the heads together.

6. In aspool. the combination, of a fixed head, a removable head, aplurality of arcshaped sections interposed between the heads, wedgingmeans on one of the heads for simultaneously moving all of the sectionsoutward and in parallel relation to the axis, means for securing thesections in this position.

7. In a spool, the combination.l of a fixed head, a removable head, aplurality of aro- `shaped sections interposed between the heads, meansfor simultaneously movingf all of the sections outward and in parallelrelation to the axis, means for securingthe sections in this position,said. moving means including inclined or wedginq surfaces between thelremovable head and said sections.

8. Ina spool. the combination.y of a fixed and a removable head, aplurality of arcshaped sections which compose the barrel part of thespool and in spaced or separated positions when the material is woundthereon, means on the removable head for forcing the sections into thisposition but permitting them to collapse or move towards the axis and inparallel relation thereto when the removable head is withdrawn, andmeans for securingV the parts in operative positions.

9. In a spool, the combination of a fixed and a removable head, one headY being formed with a groove having an inclined surface, the fixed headhaving a hub attached thereto, a plurality of barrel formingsectionsinterposed between the heads and movable radially of the axis of thespooL-said .sections having;r inclined surfaces for `engraging ltheinclined surface of the groove i:in one `of the heads, ,for the ,purposeof supportingthe sections atone of ,their ends and for .causing thesections to move outward when the removable head is moved towardsthelixedheadyandlmeans in the hub yfor*clamping or securing the two headsand saidlsections tin place j v v10. In a spool, 'the vcombination ofafixed and a removable head, leach formed with a groovehaving an inclinedsurface, the fixed head having ashaft afttached thereto,l` a plu.-rality of barrel forming;r sections `slidaloly mounted on the Shaft for,permitting ymovements longitudinally ,and radially of the axis ofthespool., :said sections having inclined surfaces forv engaging ltheinclined surfaces of the grooves in the heads, Jfor the rpurpose ofsupporting the sections at theirr ends and for causing the ,sections tomove

